In the experiment of Avery, McLeod, and McCarty, the additionof RNase or protease to a DNA extracta. prevented the conversion of type S bacteria into type R bacteria.b. allowed the conversion of type S bacteria into type R bacteria.c. prevented the conversion of type R bacteria into type S bacteria.d. allowed the conversion of type R bacteria into type S bacteria.

A transducing particle injects all of the DNA that it contains into a bacterial cell. Which of the following are TRUE? A. The bacterium becomes Hfr B. The bacterium becomes F+ C. The bacterium immediately acquires new functions as the injected DNA is rapidly transcribed and translated into mRNA and proteins D. This injected DNA can integrate into the bacterium’s genome through a process called recombination

Bacteria can acquire DNA directly from the environment through: please explain the answer a.Conjugation b.Transduction c.Natural transformation d.All of the above

Select the best technique to answer the following question: Where does the transcription factor Nanog bind the rex1 promater? a. EMSA . b. Northern blot . c. DNAse footprinting . d. Bacterial two-hybrid.